sodcalculator

10 Tech How-To

Fix Emails Not Appearing in iOS 10 Mail App

Guide 10-12344 · Updated · Step by step

If your iPhone or iPad on iOS 10 is not showing new emails in the Mail app, you are likely dealing with a sync, account, or notification setting issue. This guide walks you through the most common fixes, from simple refreshes to removing and re-adding your email account, so you can get your inbox working again.

What You’ll Need

  • Your iPhone or iPad running iOS 10
  • Your email account password (for re-authentication)
  • A stable Wi-Fi or cellular connection
  • Knowing which email provider you use (Gmail, Yahoo, iCloud, Outlook, etc.)

Step-by-Step

1. Force Close and Reopen the Mail App

  1. Double-press the Home button to bring up the app switcher.
  2. Swipe up on the Mail app preview to close it.
  3. Tap the Mail icon to reopen it. This often forces a fresh sync.

2. Pull to Refresh Manually

  1. Open the Mail app and go to your inbox.
  2. Place your finger on the screen and pull downward.
  3. Release when you see the spinning refresh icon. Wait for the fetch to complete.

3. Check Airplane Mode and Network Connection

  1. Swipe up from the bottom of the screen to open Control Center.
  2. Make sure Airplane Mode (the airplane icon) is off.
  3. Check that Wi-Fi or Cellular Data is enabled. If you see a red “No Service� in the status bar, you have no connection.
  4. Try toggling Wi-Fi off and on, or switch from Wi-Fi to cellular to see if emails load.

4. Check Mail Fetch Settings

  1. Go to Settings > Mail > Fetch New Data.
  2. Ensure Push is on for accounts that support it (iCloud, Exchange).
  3. For other accounts, check the Fetch schedule. Choose Every 15 Minutes, Every 30 Minutes, or Hourly. If you select Manual, you will only get new emails when you open the app and refresh.
  4. Scroll down and tap each account to verify its individual setting is not set to Manual.

5. Check Notifications for the Mail App

  1. Go to Settings > Notifications > Mail.
  2. Make sure Allow Notifications is turned on.
  3. Under Alert Style When Unlocked, choose Banners or Alerts.
  4. Ensure Sounds and Badge App Icon are enabled if you want those.
  5. Scroll down and check that each mailbox (e.g., “Inbox�) has Alerts enabled.

6. Delete and Re-add the Email Account

  1. Go to Settings > Mail > Accounts (or Settings > Accounts & Passwords on some iOS 10 versions).
  2. Tap the email account that is not working.
  3. Tap Delete Account and confirm. This removes the account from your device but does not delete your emails from the server.
  4. Restart your iPhone: press and hold the power button, slide to power off, then turn it back on.
  5. Return to Settings > Mail > Accounts and tap Add Account.
  6. Choose your provider (iCloud, Google, Yahoo, etc.) or tap Other for manual setup.
  7. Enter your email address and password, then follow the prompts. Wait for the verification to finish.

7. Check Date and Time Settings

  1. Go to Settings > General > Date & Time.
  2. Turn on Set Automatically. Incorrect time can cause SSL authentication failures with mail servers.

8. Reset Network Settings (Last Resort)

  1. Go to Settings > General > Reset.
  2. Tap Reset Network Settings and enter your passcode if prompted.
  3. Your iPhone will restart. You will need to re-enter Wi-Fi passwords after this.

Common Mistakes

  • Deleting the account instead of just the mail data: When you delete an account, you lose all locally stored emails. Make sure you have a backup or that your emails are stored on the server (most are).
  • Turning off Push for all accounts: If you set Push to off and Fetch to Manual, you will never see new emails until you manually refresh.
  • Ignoring the “Other� account setup: For custom domains or work email, you may need to enter incoming and outgoing server details manually. Using the wrong server name or port will prevent emails from loading.
  • Forgetting to check the Junk or Trash folder: Sometimes emails appear there instead of the inbox. Check those folders to confirm the app is working at all.
  • Assuming the problem is on your phone: Before troubleshooting, log into your email on a computer or web browser. If emails are not there either, the issue is with the email provider, not your iPhone.

Tips

  • Keep your iPhone updated to the latest version of iOS 10 (10.3.4 is the last one for older devices). Apple released several Mail bug fixes in these updates.
  • Use the VIP feature for important contacts. In the Mail app, tap the sender’s name and choose “Add to VIP.� You will get a separate folder and can set specific notifications for VIPs.
  • If you use Gmail, Yahoo, or Outlook, consider using the provider’s own app as a backup. Sometimes server-side settings change and the native Mail app lags behind.
  • If you have multiple email accounts, check if the problem is isolated to one account. That tells you the issue is with that account’s settings, not the Mail app.
  • Restart your iPhone at least once a week to clear temporary glitches.

Troubleshooting

If you have followed all the steps and emails still do not appear, try these additional checks:

  • Check storage space: Go to Settings > General > Storage & iCloud Usage. If your device is nearly full, Mail may fail to download new messages. Delete unused apps or photos to free up space.
  • Verify your password works: Log in to your email provider’s website using the same password. If you recently changed your password, update it on your iPhone under Settings > Mail > Accounts.
  • Try a different Wi-Fi network: Some routers or public networks block certain mail ports. Switch to cellular data or another Wi-Fi network to test.
  • Check if only attachments are missing: If you see the email but no attachment, tap the attachment icon to download it. Large attachments may not auto-download on cellular.
  • If all else fails, back up and restore: Back up your iPhone via iCloud or iTunes, then erase all content and settings (Settings > General > Reset > Erase All Content and Settings). Restore from your backup and set up Mail again. This is a drastic step but resolves most persistent software issues.

Frequently Asked Questions

Why are my emails only appearing when I open the Mail app?

Your Fetch settings are likely set to Manual or the interval is long. Go to Settings > Mail > Fetch New Data and choose a shorter fetch interval or enable Push if your account supports it.

Will deleting my email account on my iPhone delete my emails?

No. Deleting the account from your iPhone only removes it from the device. Your emails remain on the server, and you can log in from any computer or another device to see them.

My emails work on Wi-Fi but not on cellular. What should I do?

Go to Settings > Cellular (or Mobile Data) and make sure the Mail app is listed and the toggle is on. If it is off, Mail cannot use cellular data.

Why is my Gmail not syncing in the Mail app on iOS 10?

Gmail uses IMAP, and sometimes the connection drops. Try removing the account and adding it again. Also, check that you are using your full email address and an App Password if you have two-factor authentication enabled.

How do I know if my email server is down?

Try logging into your email provider’s website on a computer. If you cannot log in or see your emails there, the server is down or your account has an issue. Contact your provider’s support.

Can a VPN cause emails not to load?

Yes. Some VPNs route traffic through servers that block mail ports. Disable your VPN temporarily to see if that fixes the problem.

Related

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

More in this bed

The whole Tech How-To bed →